What is CVE-2019-20841?

CVE-2019-20841 is a high-severity vulnerability in Mattermost Server, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2020-06-19.

How severe is CVE-2019-20841?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Mattermost Server

CVE-2019-20841

An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. CSRF can sometimes occur via a crafted web site for account takeover attacks.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.004 (34.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Mattermost Mattermost_server — versions 5.18.0
N/a — versions n/a

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2019-20841?: CVE-2019-20841 is a high-severity vulnerability in Mattermost Server, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2020-06-19.
How severe is CVE-2019-20841?: High severity. CVSS v3 base score is 8.8 out of 10.